S
M
T
W
T
F
S
30
97°
64°
31
100°
64°
1
100°
68°
2
100°
72°
3
100°
72°
4
100°
72°
5
102°
73°
6
91°
75°
7
90°
66°
8
93°
63°
9
95°
70°
10
79°
70°
11
86°
68°
12
93°
66°
13
81°
62°
14
86°
70°
15
98°
68°
16
94°
70°
17
92°
70°
18
86°
65°
19
82°
63°
20
77°
58°
21
76°
56°
22
78°
56°
23
80°
54°
24
77°
53°
25
76°
53°
26
82°
59°
27
81°
59°
28
77°
59°
29
79°
60°
30
79°
59°
1
76°
58°
2
78°
58°
3
79°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in New Melle
New Melle's September 2026 forecast shows daily high temperatures ranging from 76° to 98°, with overnight lows between 53° and 70°. The average high for September is 82° with an average low of 61°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in New Melle. See also: October | November | December.
